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ELECTRICAL SPECIFICATIONS (CONT.)
Frequency Sweep (Cont.)
output
Sweep Sync
output
Marker Output
Output voltage
Signal
characteristics
Connector
Output voltage
Signal
TTL Level (56Q in series with 74FO4 outputj
LOW
While sweeping from start frequency toward stop
frequency
High
Other cases
BNC, rear panel
TTL Level (56Q in series with 74FU4 output)
Low
( While output signal is above marker frequency during
characteristics
sweep
High
Other cases
Connector
BNC, rear panel
X Drive Output
Output voltage
OV to +lOV W%) (open circuit)
Signal
OV to +lOV (Frequency increasing)
characteristics
+lOV to OV (Frequency decreasing)
Output Impedance 6OOS2, unbalanced
Load impedance
lOki2 minimum
Connector
BNC, rear panel
Replace marker frequency with center frequency
Burst/Gate Oscillation
Trigger Source
Internal Trigger . Oscillator
Internal
Internal trigger oscillator (positive/negative
logic)
External
External trigger signal (positive/negative
logic), manual trigger
Rate Setting Range O.OOlms to 29.999ms
and Display
(period setting)
Accuracy
Duty Cycle
Off/On
&5 x 10" &5Oppm)
50%
On only when oscillation mode is BURST or GATE, and the trigger source is
Digital Out
Output Voltage
Connector
1 TTLLmel
I 36-pin, rear panel
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